Urinary and sexual function changes in benign prostatic hyperplasia patients before and after transurethral columnar balloon dilatation of the prostate

Table 5 Pre- and postoperative comparisons of quality of life scores between groups (mean ± SD, scores)

Group	n	Before therapy	Treatment for 1 mo	Treatment for 3 mo
Study group	70	5.83 ± 0.89	2.89 ± 0.64a	2.23 ± 0.60a
Control group	70	5.56 ± 0.90	3.07 ± 0.76a	2.41 ± 0.74a
t value		1.785	-1.516	-1.581
P value		0.077	0.132	0.116

^aP < 0.05 vs data before treatment in the same group.